<?php
// prevent client from caching
header ('Expires: Mon, 26 Jul 1997 05:00:00 GMT');    // Date in the past
header ('Last-Modified: '.gmdate('D, d M Y H:i:s').' GMT'); // always modified
header ('Cache-Control: no-cache, must-revalidate');  // HTTP/1.1
header ('Pragma: no-cache');                          // HTTP/1.0
?>
